Šaravanja, Nikolina.
(2016).
Lateralisation of facial emotion recognition.
Diploma Thesis. Filozofski fakultet u Zagrebu, Department of Psychology.
[mentor Tadinac, Meri].
Abstract
The aim of this research was to examine two main hypotheses of cerebral lateralization of facial emotion perception: the right-hemisphere hypothesis and valence-specific hypothesis, and additionaly to examine the roll of participants' gender and emotional states – anxiety and depression. The sample comprised 110 right-handed students, mean age 21 years (43 males and 67 females). All the participants first completed a computerised version of the chimeric faces test, and afterwards they filled out the Anett handedness questionnaire (1967) and DASS-21 (Lovibond i Lovibond, 1995) scale for measuring anxiety and depression.
The right-hemisphere hypothesis was confirmed for both dependent variables – accuracy and reaction time: participants were more successful in facial emotion recognition of the emotions presented on the left side of the face. Accuracy was higher and reaction time shorter for recognizing sad chimeric faces than happy ones, but as valence*side of presentation interaction failed to reach significance, the valence hypothesis was not confirmed. There was a statisticaly significant interaction between side, valence and gender for reaction time. The dominance of right hemisphere for processing emotional faces was higher in women than men. Less depressive and anxious participants were faster in recognizing emotional faces than more depressive and anxious ones. There was significant interaction between valence and depression for reaction time.
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